VS Code调试器中Numpy数组无限展开及Jedi服务异常问题

• 运行以下Python代码：

import numpy as np
my_list = [1,2,3,4,5]
my_array = np.array(my_list)

• 使用VS Code断点调试时，列表可正常展开查看所有元素，但Numpy数组无法像列表一样展开；展开其T属性会无限循环显示自身。
• 问题始于切换至Python扩展预发布版本，切回正式版后仍未解决，同时出现Jedi语言服务器初始化失败、语法错误等异常日志。

VS Code版本信息 #

Version: 1.85.0 (user setup)
Commit: af28b32d7e553898b2a91af498b1fb666fdebe0c
Date: 2023-12-06T20:48:09.019Z
Electron: 25.9.7
ElectronBuildId: 25551756
Chromium: 114.0.5735.289
Node.js: 18.15.0
V8: 11.4.183.29-electron.0
OS: Windows_NT x64 10.0.19045

相关错误日志 #

2023-12-15 11:41:41.416 [info] [Error - 11:41:41 AM] Server initialization failed.
2023-12-15 11:41:41.417 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 
2023-12-15 11:41:41.417 [info] [Info  - 11:41:41 AM] Connection to server got closed. Server will restart.
2023-12-15 11:41:41.417 [info] true
2023-12-15 11:41:41.418 [info] [Error - 11:41:41 AM] Python Jedi client: couldn't create connection to server.
2023-12-15 11:41:41.418 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 
2023-12-15 11:41:41.419 [info] [Error - 11:41:41 AM] Restarting server failed
2023-12-15 11:41:41.419 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 
2023-12-15 11:41:41.419 [info] [Error - 11:41:41 AM] Server process exited with code 1.
2023-12-15 11:41:41.797 [info] Traceback (most recent call last):
  File "c:\Users\felix\.vscode\extensions\ms-python.python-2023.22.1\pythonFiles\run-jedi-language-server.py", line 9, in <module>
    from jedi_language_server.cli import cli
  File "c:\Users\felix\.vscode\extensions\ms-python.python-2023.22.1\pythonFiles\lib\jedilsp\jedi_language_server\__init__.py", line 5, in <module>
    from importlib_metadata import version
  File "c:\Users\felix\.vscode\extensions\ms-python.python-2023.22.1\pythonFiles\lib\jedilsp\importlib_metadata\__init__.py", line 6, in <module>
    import zipp
  File "c:\Users\felix\.vscode\extensions\ms-python.python-2023.22.1\pythonFiles\lib\jedilsp\zipp\__init__.py", line 9, in <module>
    from .py310compat import text_encoding
  File "c:\Users\felix\.vscode\extensions\ms-python.python-2023.22.1\pythonFiles\lib\jedilsp\zipp\py310compat.py", line 5
    def _text_encoding(encoding, stacklevel=2, /):  # pragma: no cover
                                               ^
SyntaxError: invalid syntax

2023-12-15 11:41:41.817 [info] [Error - 11:41:41 AM] Server process exited with code 1.
2023-12-15 11:41:41.819 [info] [Error - 11:41:41 AM] Server initialization failed.
2023-12-15 11:41:41.819 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 
2023-12-15 11:41:41.819 [info] [Error - 11:41:41 AM] The Python Jedi server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
2023-12-15 11:41:41.819 [info] [Error - 11:41:41 AM] Python Jedi client: couldn't create connection to server.
2023-12-15 11:41:41.819 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 
2023-12-15 11:41:41.819 [info] [Error - 11:41:41 AM] Restarting server failed
2023-12-15 11:41:41.819 [info]   Message: Pending response rejected since connection got disposed
  Code: -32097 

从错误日志可知，核心问题是Jedi语言服务器依赖的zipp库使用了Python 3.10+专属的位置-only参数语法（/），但当前VS Code关联的Python解释器版本低于3.10，导致语法错误。结合调试numpy数组的问题，可按以下步骤处理：

• 1. 切换Python解释器版本
     按下Ctrl+Shift+P打开命令面板，输入Python: Select Interpreter，选择版本≥3.10的解释器。
• 2. 重置Python扩展
     卸载VS Code中的Python扩展，手动删除扩展缓存目录C:\Users\felix\.vscode\extensions\ms-python.python-*，重启VS Code后重新安装Python扩展正式版。
• 3. 优化调试配置
     在.vscode/launch.json中添加以下配置，让调试器正确解析numpy数组：

  "configurations": [
      {
          "name": "Python: Current File",
          "type": "python",
          "request": "launch",
          "program": "${file}",
          "console": "integratedTerminal",
          "justMyCode": false,
          "env": {"PYDEVD_DISABLE_FILE_VALIDATION": "1"}
      }
  ]
  

• 4. 替换语言服务器
     打开VS Code设置，搜索Python: Language Server，选择Pylance替代Jedi，避免Jedi的版本兼容问题。

内容的提问来源于stack exchange，提问作者Akut Luna